Visual evoked potentials during stimulus selection in eyelid conditioning in the rabbit (Oryctolagus cunigulus).

The eyeblinks of 24 New Zealand white rabbits were conditioned in Exp I to either the visual or the nonvisual element of a compound conditioned stimulus. Evoked potentials (EPs) were simultaneously recorded from the visual cortex. Changes in the late negative component of the EP were related to nonspecific arousal effects. The initial surface positive component, however, was significantly enhanced during visual stimulus control. This enhancement was observed whether the visual stimulus was presented alone or in compound and with either photic or optic chiasma stimulation as the visual stimulus. The effect could not be attributed to arousal, sensitization, or to peripheral mechanisms. Some implications of the data were assessed through a subsequent investigation in Exp II of geniculostriate recovery cycles under the same conditions. (28 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

"Stimulus Selection in Eyelid Conditioning in the Rabbit (Oryctolagus cuniculus)": Erratum.

Reports an error in the original article by Perry S. Kinkaide (Journal of Comparative and Physiological Psychology, 1974[Jun], 86[6], 1132-1140). The lower portion of Figure 3 on page 1138 should have represented the last two conditions for Group T as Test AV and reTest AV. The last sentence of the caption should have been deleted. (The following abstract of this article originally appeared in record 1979-05368-001) Conducted 2 experiments, using a total of 24 female New Zealand white rabbits, in which a "visual" stimulus (V), either flashes or electrical stimulation of the optic chiasma, was reinforced in compound with a differentially reinforced (CS+) or nonreinforced (CS-) nonvisual stimulus. Visual stimulus control of conditioned eyeblink activity was acquired if V was reinforced in compound with CS- but was "blocked" when reinforced in compound with CS+. Both effects were demonstrable within Ss and were independent of the method of visual stimulation. Extinction and backward conditioning of chiasmic stimulation preceded retraining of 6 Ss. The establishment and blocking of visual stimulus control were again evident within Ss. The data are interpretable in terms of either attentional or associative theory. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Stimulus selection in eyelid conditioning in the rabbit (Oryctolagus cuniculus).

Conducted 2 experiments, using a total of 24 female New Zealand white rabbits, in which a "visual" stimulus (V), either flashes or electrical stimulation of the optic chiasma, was reinforced in compound with a differentially reinforced (CS+) or nonreinforced (CS–) nonvisual stimulus. Visual stimulus control of conditioned eyeblink activity was acquired if V was reinforced in compound with CS– but was "blocked" when reinforced in compound with CS+. Both effects were demonstrable within Ss and were independent of the method of visual stimulation. Extinction and backward conditioning of chiasmic stimulation preceded retraining of 6 Ss. The establishment and blocking of visual stimulus control were again evident within Ss. The data are interpretable in terms of either attentional or associative theory. (24 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)